A chemist must prepare 900.0 mL of potassium hydroxide solution with a pH of 13.50 at 25 °C. He will do this in three steps: • Fill a 900.0 mL volumetric flask about halfway with distilled water. • Weigh out a small amount of solid potassium hydroxide and add it to the flask. . Fill the flask to the mark with distilled water. Calculate the mass of potassium hydroxide that the chemist must weigh out in the second step. Round your answer to 2 significant digits. X
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Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.
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Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.
![**Preparing Potassium Hydroxide Solution**
**Objective:**
To prepare 900.0 mL of potassium hydroxide solution with a pH of 13.50 at 25 °C.
**Procedure:**
The chemist will follow these three steps:
1. **Initial Filling:**
- Fill a 900.0 mL volumetric flask about halfway with distilled water.
2. **Weighing Potassium Hydroxide:**
- Weigh out a small amount of solid potassium hydroxide and add it to the flask.
3. **Final Dilution:**
- Fill the flask to the mark with distilled water.
**Task:**
Calculate the mass of potassium hydroxide that the chemist must weigh out in the second step. Round your answer to two significant digits.
**Step-By-Step Calculation:**
[Include the calculations and formulas here if necessary for the explanation.]
**Interactive component:**
Two input fields are available for users to input their answers:
1. An input field labeled "_____ g" indicating the mass in grams.
2. Control buttons below for resetting input, and seeking help if needed.
These processes and interactive components help users understand and accomplish the task accurately.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Faf399169-ef14-4107-9621-c5ec1888471d%2F622e820f-e1dc-423b-8de2-732a73b66309%2Fj01edb_processed.jpeg&w=3840&q=75)
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